digital signal generation, DAQ

[sljuka]

Hello,

I would just like some help with my code. I made one digital signal (Digital Waveform Graph 2) ang I would like to generate him on digital output on my DAQ (NI USB- 6212). How can I do that? If maybe someone has a similar code...

Thanks

[PatriciaAD · Accepted solution]

Hi,

What you need to add is a DAQ Assistant VI, from the Measurement I/O- DAQmx palette. This is the most simple solution. Its input, if you select digital signal generation, will be an array of digital waveforms.

Use the Build Array function to create a 1-element array from your digital waveform and wire the array to the DAQ Assistant.

There are many examples for DAQmx driver, just go in the Help Menu and select Find Examples.

Please let us know if you have more questions!

Patricia

[sljuka]

Thanks!

[sivakumard]

Hi 

When i am trying as you said in my application using NI myDAQ, i am getting an error like as shown below.

please give me a solution for this problem. i am attaching the VI and the error.

[Dennis_Knutson]

Your device does not have hardware timed digital I/O. It is strictly software timed. You need output one sample at a time with inside a loop with a wait function providing the timing. The timing will not be very accurate and will be subject to jitter fire to the os.

[sivakumard]

HI knutson

thank you for your information. but

what should i do for getting continuous digital signals from NI myDAQ to control the switches?

what should i do to control the motor using myDAQ in realtime?

[sivakumard]

thank you for your information

As you said i tried with single sample in DAQ assistant and for input signals which are comparing and i got the results.